The vast majority of people use temperature as a reference for comfort, clothing index, and outdoor index.

Whether you think it's good or bad, humans are extremely sensitive creatures.

A minimal temperature change can make the human body go from comfortable to uncomfortable immediately, such as sweating profusely or shivering with cold as soon as you leave the house.

The two most commonly used temperatures in real life are the freezing point and the boiling point. Aside from cooking, there are very few times when we need to touch the boiling point. Another temperature often used is 32 degrees Fahrenheit (0 degrees Celsius), the temperature at which water is allowed to freeze.

The freezing point occurs frequently in nature, and we need to take it into account, whether it's the survival of crops, the resistance of building materials to freezing, or the condition of roads. As we know, Celsius as a temperature scale is set around the freezing and boiling points of water, and it's simple and easy to understand: 0 degrees is the temperature at which it freezes, and 100 degrees is the temperature at which it boils.

If we lived in the underwater world, Celsius would indeed work well. But that's not the case, we live on land and Fahrenheit degree works better for us. There's a joke about Celsius and Fahrenheit that isn't funny, but it catches on every once in a while: "When using Fahrenheit, at 0 degrees you feel cold and at 100 degrees you feel hot; when using Celsius, at 0 degrees you feel cold and at 100 degrees you are dead."

Ignoring desert areas and the poles, the common range of temperatures measured in Fahrenheit is -20 to 110 degrees (a total of 130-degree intervals), while the range in Celsius is -28.8 to 43.3 degrees (a total of 72.1-degree intervals). The range in Fahrenheit is 1.8 times that of Celsius, allowing for greater accuracy without the use of decimal points. Humans are very sensitive creatures to changes in temperature, and Fahrenheit allows us to better perceive temperature changes right from the reading. Even people who are more accustomed to using Celsius as a unit of temperature in their daily lives are careful to use the unit of Fahrenheit when conducting scientific research or making weather predictions.

Metric units are indeed more convenient in some aspects of life, such as the common use of millimeters and centimeters rather than inches and feet when measuring precipitation snowfall. Metric conversions are also simpler than imperial when measuring distances (1,000 meters = 1 kilometer, 5,280 feet = 1 mile), and when measuring barometric pressure it is common to use the units of millibars or hectopascals rather than inches of mercury.

There are only three countries currently using Fahrenheit to broadcast the weather: the United States, Myanmar, and Liberia. Although Celsius is used by a large number of people worldwide, it has to be said that Fahrenheit is more scientific.